Research Pays Off: Optimization of Tack Coat Applications in Asphalt Pavements: Louisiana Develops Evaluation Tools and Pilot-Tests Guidance

Tack coat, a light application of asphalt, can provide a bond between a pavement surface and newly placed pavement. Selecting optimal tack coat material and determining an appropriate application rate are both critical for developing the bond strength between pavement layers. This article reports on National Cooperative Highway Research Program Project 9-40 (Optimization of Tack Coat for Hot-Mix Asphalt), which aimed to develop procedures for selecting tack coats and evaluating their quality in field applications. The project investigated the effects of emulsified tack coat types, surface types, and application rates. The results and findings of the project are offered in this article. The role of Louisiana in developing the evaluation tools and providing pilot testing of the guidance is highlighted.

• Record URL:
  • https://nap.nationalacademies.org/catalog/22178
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07386826
• Authors:
  • Mohammad, Louay N
  • Elseifi, Mostafa A
  • King Jr, William (Bill)
• Publication Date: 2015-1

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 43-45
• Serial:
  • TR News
  • Issue Number: 296
  • Publisher: Transportation Research Board
  • ISSN: 0738-6826
  • Serial URL: https://doi.org/10.17226/895

Subject/Index Terms

• TRT Terms: Asphalt pavements; Hot mix asphalt; Materials selection; Optimization; Tack coats
• Geographic Terms: Louisiana
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01561428
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Apr 27 2015 9:49AM